Improved axle-box for carriages



L R. DYE. V Carriage Axle Box. V I No. 107,170. PatentedSept. 6,1870.

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LEWIS R. DYE, OF CRANBERRY, NEW JERSEY.

Letters-Patent No. 107 ,170, dated September 6, 1870.

IMPROVED AXLE-BOX FOR CARRIAGES.

The Schedule referred to in these Letters Patent and making part of the same.

I, LEWIS R. DYE, of Cranberry, connty-ofliiiddle sex, State of New Jersey, nave invented an Improved Axle-Box, of which the following is a specification.

Nature and Object of the Invention.

My invention consists of certain improvements in axle-boxes, fully described hereafter, whereby the box may be cylindrical in shape externally, and thus adapted to a cylindrical opening in the hub ofawheel without the depth of the internal oil-chamber being reduced, at more unitorm bearing of the box on the journal being also obtained, and excessive friction avoided.

Description of the Accompanying Drawing.

Figure 1 is a longitudinal section of my improved axle-box;

Figure 2, an exterior view; and

Figure 3, a view, partly in section, of a box of an ordinary form.

General Description.

The box A. is of cast metal,,cylindrical in form and free from any projections or protuberances externally, having at the inner end a flange, a, in which are recesses c, and at the other end external screw-tln'eads, adapted to those'of an annular nut, a.

The interior of the box is bored out to form .a central oil-chamber, G, and two. bearings, b 1), near the opposite ends of the box, both bearings being tapering, but the hearing I) tapering to a greater extent than the hearing I), its inner edge .1 being considerably within a line, a:-y, coinciding with the face of the hearing I), and drawn through the outer edges of both bearings.

in ordinary boxes, fig. 3, the faces of both bearings coincide with the same line, w-w, so that, in order to form an oil-chamber, G, of sufficient depth, it is necessary to enlarge the box near its inner end, for it will be seen. that, if the box were cylindrical, its outer face coinciding with the line tw, the metal at the point z would be so reduced in thickness as greatly to impair the strength of the box.

By imparting a greater amount of taper to the hear-- ing 1), its inner edge :1 is carried so far from the external face of the box, that a chamber, (3, of ar'nple depth, may be formed, with ut impairing the strength of a cylindrical box, while the abrupt bearing b may be brought closely against a corresponding conical enlargementon the journal, so as to prevent allplay of the box on the journal without danger of wedging it onto the same, or against the nsualcollar, so tightly as to produce excessive friction.

Owing to the cylindrical form of the box, it may be fitted to a cylindrical-opening in the hub, the nice fitting requisite when the box is not uniform in diameter externally being avoided, it only beingnecessary to enlarge the ends of the opening to receive the flange a and nut a.

The nut a may in some instances be dispensed with, as, owing to the external screw and to the ab} sence of all lugs or project-ions on the exterior of the box, the latter can be screwed into the hub and'theu secured by pins driven into the hub through the recesses c.

- Claim.

'lhe axle-box A, cylindrical in form externally, and

containing a chamber, 0, and two tapering bearings,

b b, when the faceof the former is tapered to a greater.

witnesses.

LEWIS It. DYE. Witnesses:

' LOUIS BOSWELL,

WM. A. STEEL. 

